| Table 1. The demographic characteristics of the study and control groups. | |||
| PCOS group n=27 | Non-PCOS group n=33 | p-value | |
|---|---|---|---|
| Age, years | 26 (24.5-29.5) | 30 (27-34) | 0.203 |
| Parity, n | 2 (1-2) | 2 (1-2) | 0.892 |
| ART pregnancy, n (%) | 0 (0) | 3 (9.1) | 0.244 |
| Menstrual irregularity before pregnancy, n (%) | 15 (55.6) | 5 (15.2) | 0.002 |
| Insulin resistance, n (%) | 4 (14.8) | 1 (3) | 0.100 |
| Gestational age, weeks | 39 (38-41) | 39 (39-40) | 0.210 |
| BMI, kg/m2 | 28 (24-29) | 25 (25-30.5) | 0.085 |
| Maternal AMH, ng/ml | 2.5 (1.3-5.6) | 1.7 (1-3.9) | <0.001 |
Note: PCOS, polycystic ovary syndrome; ART, assisted reproductive technology; BMI, body mass index; AMH, anti-Müllerian hormone. Continuous variables are presented as median (25-75 percentile) and categorical variables are presented as frequency (percentage).